Automatic liquid supply

 

(57) Abstract:

Usage: water supply in the automatic liquid supply. The essence of the invention: control piping fitted with valves. The input of the first valve of the suction pipe is connected via the first pump to the input of the first valve discharge pipe and the inlet of the first valve intermediate pipe. The outputs except the last valve of the suction pipe connected respectively to the inputs of the second and so on valves of the suction pipe and inlet respectively of the first, and so on, vintela lateral pipelines. The output of the last valve of the suction pipe is connected through the pump with the output of the last valve on the discharge pipe. The outputs of the first and so on valves transverse pipes connected respectively to the outputs of the first, and so on, except the last intermediate valves piping and after, respectively, the second, and so on, but the last pumps with outputs respectively of the first, and so on, but the last valve discharge pipe. 2 Il.

The invention relates to water supply and relates to automatic fluid supply.

Known from the discharge of regulated and unregulated pumps, containing the suction line, pressure network, intermediate pipes, lateral pipes, control system connected to the pump and controlled by valves [1]

Also known automatic fluid containing the suction pipe, discharge pipe, intermediate and lateral piping, control system, connected with the valves installed respectively on the suction, pressure and intermediate piping, and pumps, and the entrance of the first valve on the suction pipe is connected to the channel of the suction pipe, pumps mounted on transverse lines, the output of the last valve of the suction pipe is connected to the output of the last gate of the intermediate pipe and through the last pump in the direction of travel of the liquid from the end of the discharge pipe.

A disadvantage of the known solutions is that when the need to expand the range of changes in the characteristics of the systems you need to install additional pump unit. In addition, when changing network characteristics is not always possible to ensure the operation of the pumping plants with maximum efficiency.

The invention yavlyaetsya this fact, in the system of automatic fluid containing the suction pipe, discharge pipe, intermediate and lateral piping, control system, connected with the valves installed respectively on the suction, pressure and intermediate piping, and pumps, and the entrance of the first valve on the suction pipe is connected to the channel of the suction pipe, pumps mounted on transverse lines, the output of the last valve of the suction pipe is connected to the output of the last gate of the intermediate pipe and through the last pump in the direction of travel of the liquid from the end of the discharge pipe, the transverse pipes equipped with valves, at the entrance of the first valve of the suction pipe is connected via the first pump in the direction of travel of the fluid from the inlet of the first valve discharge pipe and the inlet of the first valve intermediate of the pipeline, the outputs of the first, second, and so on, but the last valve of the suction pipe connected respectively to the inputs of the second, third, etc. of the valves of the suction pipe and with inputs respectively of the first, second, etc. gates lateral pipelines, and the output of poslednego is Truboprovod, moreover, the outputs of the first, second, etc. valves transverse pipes connected respectively to the outputs of the first, second, etc. except the last intermediate valves piping and after, respectively, the second, third, etc. except the last pumps with outputs respectively of the first, second, and so on, but the last valve discharge pipe, inputs, respectively, of the second, third, etc. valves penstock and inputs, respectively, of the second, third, etc. valves intermediate pipelines.

In Fig. 1 schematically shows a system for automatic fluid supply of Fig. 2 is a graph of performance (Q) and head (H).

Automatic fluid contains the suction pipe 1 with installed valves 2, 3, 4 and 5, the discharge pipe 6 are installed on the valves 7, 8, 9 and 10, the intermediate pipes 11, 12, 13 and 14 mounted respectively by valves 15, 16, 17 and 18, the transverse pipes 19, 20, 21, 22 and 23 mounted pumps 24, 25, 26, 27 and 28 and the valves 29, 30 and 31, and the control system 32, connected with the valves and pumps.

The first input of gate 2 of the suction pipe 1 is connected with Kang poslednego valve 18 of the intermediate pipe 14 and through the last pump 28 during movement of fluid from the end of the discharge pipe 6. The first input of gate 2 of the suction pipe 1 is connected via the first pump 24 in the direction of travel of the fluid from the inlet of the first valve 7 discharge pipe and the inlet of the first valve 15 intermediate pipe 11. The output of the first 2, second 3, and so on, but the last 5 valves of the suction pipe 1 are connected respectively to the inputs of the second 3 third 4, and so on valves of the suction pipe and with inputs respectively of the first 29 and second 30, and so on valves transverse pipes 20, 21 and 22, and the output of the last gate 5 of the suction pipe 1 is connected through the pump 28 with the output of the last gate 10 the discharge pipe 6.

The outputs of the first 29 and second 30, and so on valves transverse pipes 20, 21 and 22 are connected respectively to the outputs of the first 15, second 16, and so on, but the last of the intermediate valves of the pipes 11, 12 and 13 and after, respectively, the second 25, 26 third, and so on, but the last pump outputs respectively of the first 7, second 8, and so on, but the last valve discharge pipe 6 and inputs, respectively, of the second 16, third, 17, etc. of the intermediate valves of the pipes 12, 13 and 14.

Let's consider a system with four pumps.

When open valves 7, 8, 9 and 10, the discharge pipe 6, valve open 2 of the suction pipe 1, the open valve 15 intermediate pipe 11 and the other closed and valves features system Q12and H12match point Century.

To ensure the system at the point corresponding to N12H1234that should open the valves 2,3 suction pipe 1, the valve 16 of the intermediate pipe 12, the valves 29, 30 and 31 of the transverse pipes 20, 21 and 22, the valves 7,9 discharge pipe, and the remaining valves are closed.

Maximum head (point D, H1, Qmthe system will provide at open valves 15, 16, 17 intermediate pipes and other closed and valves.

Maximum flow (point E, Hm, Q), the system will provide, if open valves 2, 3, 4, 5 of the suction pipe 1, the valves 29, 30, 31 of the transverse pipes 20, 21 and 22, the valves 7, 8, 9, 10 the discharge pipe 6 and the intermediate valves of the pipes are closed.

Thus, carrying out a given switching valves, you can ensure that the system anywhere in the characteristics of Q and H.

Signals for closing or opening the valves are produced system The operation of the system when the number of pumps for more than four are similar to those described.

Use in parts of pumps drive with stepless speed control will ensure a smooth transfer of the system to any desired point, increasing the energetic and economic performance of pumps and drive.

AUTOMATIC LIQUID SUPPLY containing suction, pressure, intermediate and lateral piping, control system, connected with the valves installed respectively on the suction, pressure and intermediate piping, and pumps, and the entrance of the first valve on the suction pipe is connected to the channel of the suction pipe, pumps mounted on transverse lines, the output of the last valve of the suction pipe is connected to the output of the last gate of the intermediate pipe and through the last pump in the direction of travel of the liquid from the end of the discharge pipe, characterized in that the transverse pipes equipped with valves, at the entrance of the first valve of the suction pipe is connected via the first pump during movement of fluid from the inlet of the first valve pressure and intermediate pipelines, the outputs of the first, second, etc. except the last valve of the suction pipe is connected to CE is th, the second, and so on, valves, lateral pipelines, and the output of the last valve of the suction pipe is connected through the pump with the output of the last valve on the discharge pipe, and the outputs of the first, second, etc. valves transverse pipes connected respectively to the outputs of the first, second, and so on, except the last, valves intermediate pipelines and after, respectively, the second, third, etc., except the last, pumps with outputs respectively of the first, second, and so on, except the last, gates, penstock, inputs, respectively, of the second, third, etc. valves penstock and inputs, respectively, of the second, third, etc. valves intermediate pipelines.

 

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